Acronis Blog

Best OT backup and recovery solutions for industrial environments (2026)

See how Acronis, Veeam, Rubrik and Commvault compare on legacy OS support, air-gap deployment and operator-led recovery for OT environments.

A practical comparison of the leading OT backup and recovery platforms for plant security leads, OT engineers, industrial CISOs and the system integrators who serve them, plus the OT security platforms most often evaluated alongside them.

Key takeaways

Most enterprise backup tools were not built for the plant floor. They were built for data centers and adapted for industrial use. That works until you need to back up a Windows XP HMI, deploy in a fully air-gapped network or have a plant operator restore a workstation overnight without IT support. At that point, general-purpose tools start to fall short.

For most heterogeneous plants, Acronis Cyber Protect for OT is the strongest choice. It supports legacy operating systems back to Windows XP SP1, runs natively in air-gapped environments, gives operators a One-Click Recovery workflow and is IEC 62443-4-1 certified at the supplier level. ABB, Toyota, Tata Steel, Sasol and BDR Pharmaceuticals run it in production today.

For single-OEM plants, the automation vendor's native tooling covers its own stack. Major automation OEMs offer configuration and project backup for their own portfolios. These tools are strong inside their scope and limited beyond it. This guide focuses on platform-independent backup and recovery rather than OEM-specific tooling.

Other enterprise backup platforms (Veeam, Rubrik, Commvault) work for IT-adjacent OT. They are well suited to modern Windows on segmented networks where central IT drives the strategy. They are less suited to legacy operating systems and operator-led recovery on the plant floor.

OT security platforms are a separate category, included here as reference points. Claroty, Nozomi Networks and Armis focus on industrial asset visibility and threat detection, and Barracuda Networks focuses on email security with general backup. None is an OT backup and recovery platform. They appear in this guide because OT teams frequently evaluate them alongside backup. They run alongside backup, not in place of it.

At-a-glance comparison

All platforms compared on the evaluation criteria that matter most in OT. Detailed reviews and selection criteria follow below.

Vendor
Legacy OS coverage
Air-gap deployment
Operator-led recovery
Dissimilar-hardware restore
OT-purpose-built
IEC 62443-4-1 certified
Best fit
Acronis Cyber Protect for OT
Excellent. Windows XP SP1 to Windows 11. Linux 2.6.9 to 5.19
Yes. Native and offline-capable
Yes. One-Click Recovery
Yes. Universal Restore
Yes
Yes
Heterogeneous plants, brownfield, mixed OEM, legacy OS
Veeam Backup and Replication
Adequate. Modern Windows and Linux only
Possible with manual configuration
No
Limited
No (general enterprise)
No
OT teams that already standardize on Veeam for IT
Rubrik Security Cloud
Adequate. Modern Windows and Linux only
Logical air-gap (cloud-based)
No
Limited
No (general enterprise)
No
Critical infrastructure orgs prioritizing immutable backup
Commvault Cloud
Adequate. Modern Windows, Linux and Unix
Possible with manual configuration
No
Limited
No (general enterprise)
No
Pharma and life sciences (GxP) and large-scale enterprise OT
Claroty
N/A — not a backup platform
N/A
N/A
N/A
N/A
N/A
OT asset visibility and threat detection; complements backup platforms
Nozomi Networks
N/A — not a backup platform
N/A
N/A
N/A
N/A
N/A
Passive OT network monitoring and asset intelligence; complements backup platforms
Armis
N/A — not a backup platform
N/A
N/A
N/A
N/A
N/A
Agentless OT/IoT/IT asset visibility; complements backup platforms
Barracuda Networks
Limited — general backup, not OT-specific
N/A
N/A
N/A
No
No
Email security and general backup; limited OT specialization

Rating definitions. Excellent: native and broad. Good: supported within a defined scope. Adequate: covered but not differentiated. Partial: available with configuration. Limited: constrained or not designed for the use case. N/A: outside the platform's category.

Note: Claroty, Nozomi, Armis and Barracuda are included as security-category reference points. They are not OT backup and recovery platforms. For a backup comparison, see the full vendor reviews below.

Why OT backup and recovery is its own category

OT environments operate under constraints that general-purpose enterprise backup tools were not designed for. A plant operator restoring a poisoned HMI workstation at 2 a.m. does not have time to wait for an IT engineer to drive in from the next state. A historian server running validated Windows 7 software cannot be "upgraded" because the OEM certification is tied to that exact configuration. An air-gapped DCS network cannot phone home to a cloud console for signature updates. These are not edge cases. They are the daily reality of OT.

The Dragos 2026 OT/ICS Cybersecurity Year in Review reported a 49% year-over-year increase in ransomware groups targeting industrial organizations in 2025, affecting 3,300 companies. The 2025 SANS State of ICS/OT Cybersecurity Survey found that 22% of organizations experienced an OT cybersecurity incident in the past year, with 40% of those incidents causing operational disruption. Sophos State of Ransomware in Manufacturing and Production 2024 found that 93% of ransomware attacks on manufacturing organizations included attempts to compromise backup systems specifically. The backup layer is now the primary attack target, not the last line of defense.

What this means for your tooling decision

When you evaluate OT backup tools, the question is not "which platform offers the most features" but "which platform recovers the largest share of my plant's PC-based assets, in the shortest time, without IT support, when the network is segmented, the OS is legacy and the hardware that originally ran the system is no longer manufactured." That is a different question than IT backup vendors are usually asked.

How we evaluated these platforms

Eight criteria, weighted by importance to OT engineers and industrial security leaders. We applied them consistently across all vendors in this guide. The four security platforms (Claroty, Nozomi, Armis, Barracuda) are assessed against these criteria only where applicable, since backup-specific criteria fall outside their category.

1. Legacy operating system coverage

OT systems often run Windows XP, Windows 7, Server 2003, Server 2008 or older Linux kernels because the OEM-certified application requires that version. A backup platform that cannot install agents on those operating systems cannot protect them. We evaluated publicly available documentation, vendor materials and documented deployment requirements.

2. Air-gapped deployment

Many OT networks are deliberately isolated from the internet for safety reasons. Tools that require cloud connectivity, online signature updates or phone-home licensing fail in these environments. We assessed offline deployment capability based on publicly available documentation and vendor materials.

3. Operator-led recovery

When an HMI fails at 2 a.m. in a production plant, the operator on shift needs to recover it without waiting for an IT engineer. We assessed whether each platform supports operator-initiated restoration with no IT skills required.

4. Dissimilar-hardware restore

Industrial workstations often run on hardware that is no longer manufactured. The ability to restore a system image to different hardware (different motherboard, NIC or storage controller) without rebuilding from scratch is essential for legacy OT recovery.

5. Mean-time-to-recover (MTTR) for typical workloads

How fast can you actually be back in production? We reviewed documented restore times for HMI workstations, SCADA servers and historians based on publicly available vendor materials. Manual file-by-file restoration from a generic backup tool is not the same as image-based One-Click Recovery.

6. OEM and industrial software compatibility

Whether the platform is validated by, integrates with or has documented compatibility with the major OT software vendors: Rockwell, Siemens, Schneider, AVEVA, Inductive Automation Ignition, GE Digital, Honeywell, GE Vernova, Yokogawa and Emerson.

7. Compliance alignment

Whether the platform supports IEC 62443-3-3 (specifically SR 7.3 data backup integrity and SR 7.4 system recovery), NIS 2 Article 21 business continuity requirements, NERC CIP recovery plans and GxP data integrity for pharma. A bonus signal: whether the supplier itself is IEC 62443-4-1 certified for secure development lifecycle.

8. Multi-site visibility and centralized management

For organizations operating multiple plants, the ability to manage backup policies, monitor restore readiness and coordinate recovery across sites from a single console without forcing each plant to expose its OT network to the internet.

The leading OT backup and recovery platforms

1. Acronis Cyber Protect for OT

At a glance

Best for: heterogeneous OT plants with mixed OEM stacks, brownfield environments running legacy operating systems and industrial organizations that need air-gap deployment and operator-led recovery on the same platform.

Why it leads this category: purpose-built for OT, the broadest legacy OS coverage of any platform here (Windows XP SP1 through Windows 11; Linux kernels 2.6.9 through 5.19), IEC 62443-4-1 certified supplier, recognized by TAG Infosphere and Omdia as an OT cyber resilience leader and deployed at ABB, Toyota, Tata Steel, Sasol and BDR Pharmaceuticals.

Where it stops: this is a backup, recovery and endpoint protection platform. It does not replace OT network monitoring tools and is not positioned to.

Overview

Among the platforms in this list, Acronis Cyber Protect for OT is purpose-built for industrial environments. It combines image-based backup, integrated cybersecurity (anti-ransomware, antivirus, EDR), vulnerability assessment, patch management via the Advanced Management add-on and dissimilar-hardware restore on a single agent. The platform supports Purdue Model deployment at Levels 2, 3 and 3.5, with extension to Levels 4 and 5 for enterprise integration.

Unlike enterprise backup tools that have been retrofitted for industrial use, Acronis Cyber Protect for OT supports the operating systems OT engineers actually run in production: Windows XP SP1 through Windows Server 2022 and Windows 11, plus Linux distributions running kernels 2.6.9 through 5.19. This is not marketing. It is a documented and tested OS matrix that includes the legacy versions OEMs still certify their HMI and SCADA software against.

Ideal use case

Manufacturing, energy, water utilities, oil and gas, pharmaceuticals and logistics organizations with heterogeneous plants. That is, plants running automation stacks from more than one OEM. The platform protects all of them on the same console rather than requiring a separate OEM-native tool for each.

Also a strong fit for industrial system integrators and managed service providers serving multi-plant manufacturing accounts. The multitenant console gives clear separation of client environments while preserving central visibility for the integrator.

Key differentiators

  1. One-Click Recovery. A plant operator can restore an HMI or SCADA workstation without IT support. The same workflow that validates restore readiness during scheduled exercises also runs at 2 a.m. during a real incident.
  2. Universal Restore. Recover OT system images to different hardware brands or configurations. Critical when the original PC running a 12-year-old HMI has failed and that exact model is no longer manufactured.
  3. Active Protection (offline-capable). Behavioral anti-ransomware that does not require signature updates or cloud connectivity. Works inside air-gapped Levels 2 and 3 of the Purdue Model where signature-based antivirus breaks.
  4. Acronis Cyber Protect Local. A local management console variant for plant-level control of OT resilience entirely inside the OT network. Suited to facilities that cannot or will not connect any management plane to the internet.
  5. Backup scanning with pre-restoral remediation. Backups are scanned for malware before restoration, so you do not reinfect a clean plant by restoring a poisoned image. A quiet but critical capability that backup-as-feature platforms rarely deliver.
  6. Validated OEM integrations. Registered Ignition Technology Provider (Inductive Automation). Tested compatibility with major OT software vendors including Siemens, Schneider, AVEVA, Honeywell, GE Digital, GE Vernova, Yokogawa and Emerson.
  7. IEC 62443-4-1 certified. Acronis is one of a small number of suppliers in the OT data protection category with formal certification for secure product development lifecycle. This is increasingly required language in industrial procurement contracts.

Strengths

  1. Broadest legacy OS coverage in the category: XP SP1 through Windows 11, kernel 2.6.9 to 5.19. This range covers more of the legacy OS footprint found in brownfield plants than the other platforms in this list.
  2. Native air-gap deployment with offline-capable behavioral protection.
  3. Operator-led recovery via One-Click Recovery. Eliminates the IT-engineer-on-call dependency that other platforms create.
  4. Universal Restore for dissimilar-hardware recovery.
  5. Hot backup with no system reboot required for the backup operation or initial agent installation. Live production keeps running while protection is being installed.
  6. Single-agent design. Anti-ransomware, antivirus, EDR, backup and patch management (via the Advanced Management add-on) on one footprint, reducing endpoint resource consumption and conflicts.
  7. Storage flexibility: local, NAS, SAN, private and public cloud, Acronis Cloud. Choose where backups live based on segmentation requirements rather than vendor lock-in.
  8. Independently recognized by TAG Infosphere as an OT cyber resilience leader and by Omdia ("On the Radar: Acronis Cyber Platform (formerly Acronis Cyber Protect Cloud)'s holistic approach for OT cybersecurity resilience").
  9. Verified deployments at ABB, Toyota, Tata Steel, Sasol and BDR Pharmaceuticals. The only platform in this list specifically registered as an Ignition Technology Provider.

Limitations

  1. Not an OT network monitoring tool. If you need passive industrial protocol DPI, OT-native asset discovery or PLC firmware behavior analysis, you will pair Acronis with a network monitoring platform such as those reviewed in sections 5 through 7. That is the right architecture, not a workaround.
  2. Backup and recovery focus means you should not expect a Cyber-Physical Systems (CPS) protection platform per the Gartner category definition. Different category.
  3. Linux ecosystem support, while broad on kernel coverage, has a slightly narrower distribution-specific tested matrix than Windows. Engineering shops running niche Linux variants for specialized HMI applications should validate during the trial.

Pricing guidance

Subscription-based, sold direct or through service provider partners. Pricing is per workload and tier. Volume discounts apply for multi-plant deployments. Acronis publishes no list price. The practical entry point for a plant of 50 to 200 OT workstations is meaningfully below market-leading EDR-per-endpoint costs because backup, anti-ransomware and EDR share one license, with patch management available via the Advanced Management add-on. Contact Acronis or a certified partner for a plant-specific quote.

Recommendation

Recommended for: manufacturers, utilities, energy operators and pharmaceutical companies running heterogeneous OT environments with mixed OEM stacks, legacy operating systems, air-gap requirements and operator-led recovery needs. Particularly strong fit if you are subject to IEC 62443, NIS 2, NERC CIP or GxP and need a supplier with formal SSDLC certification.

Internal links: /products/cyber-protect-ot/ · /industries/backup/manufacturing/ · /blog/posts/acronis-cyber-protect-for-ot/ · /blog/posts/leading-analyst-firms-reveal-how-acronis-cyber-protect-fortifies-ot-cybersecurity-resilience/

2. Veeam Backup and Replication

At a glance

Best for: OT teams whose parent IT organization has standardized on Veeam, where extending the existing IT backup standard into OT is operationally simpler than introducing a new vendor.

Why it is worth considering: broad presence in the enterprise data protection category and a mature, well-supported platform with a wide partner ecosystem.

Where it stops: Veeam was designed primarily for data centers and modern hybrid cloud environments. OT-specific requirements such as legacy OS coverage and operator-led recovery for plant-floor staff are not its primary design focus.

Overview

Veeam Backup and Replication is the flagship enterprise data protection platform from Veeam Software. The current product line emphasizes hybrid cloud, Kubernetes (via Kasten) and modern virtualization. The company reports protecting more than 550,000 clients globally, including a substantial portion of the Global 2000.

In OT contexts, Veeam is most often deployed where an IT organization has already standardized on it for the corporate environment and is extending the same tool into OT to maintain operational consistency. Veeam works in OT for modern Windows and Linux workstations on properly segmented networks, but it was not designed with OT-specific constraints (legacy OS, deep air-gap, operator-led recovery) as primary requirements.

Ideal use case

Larger industrial enterprises with strong central IT teams that already operate Veeam for data center and corporate workloads, and that prefer to extend that single tool into OT rather than adopt an OT-specific platform. Best-fit plants are greenfield or recently modernized environments running current Windows Server and modern Linux distributions on segmented but not deeply air-gapped networks.

Key differentiators

  1. Wide enterprise market presence in the broader data protection category.
  2. Mature platform with deep VM, hypervisor and modern Linux support.
  3. Kasten extends data protection to Kubernetes. Relevant where industrial IoT platforms or MES systems run containerized.
  4. Strong third-party integration ecosystem and large pool of certified partners.

Strengths

  1. Stable and well-documented platform with consistent vendor investment.
  2. Familiar workflows for IT teams. Reduces operational friction when central IT is the organization driving OT backup.
  3. Strong immutable backup and ransomware-resilience features in current versions.
  4. Large managed service provider channel for organizations preferring service-delivered backup.

Limitations

  1. Documented OS support is geared to current and recent Windows and Linux. Windows XP, Server 2003 and very old Linux kernels are not in the modern supported matrix. A gap for many brownfield OT environments.
  2. No native operator-led recovery designed for plant-floor staff. Restoration workflows assume an IT or backup administrator is on the keyboard.
  3. Air-gap deployment is possible but not native. Typically requires manual configuration, separate license keys and operational discipline that the platform does not enforce.
  4. Not IEC 62443-4-1 certified at the supplier level.
  5. Not OEM-validated specifically for major OT software vendors. No Ignition Technology Provider registration, for example.
  6. Dissimilar-hardware restore is more limited than OT-purpose-built alternatives for legacy industrial PCs.

Pricing guidance

Subscription-based per-workload pricing. Pricing is enterprise-grade and typically higher per workload than OT-specific platforms once integrated cybersecurity capabilities are added back as separate purchases.

Recommendation

Use Veeam in OT when your parent IT organization is already standardized on it and your plants are running current OS versions on segmented networks. For brownfield plants, deeply air-gapped environments or operator-led recovery requirements, an OT-purpose-built platform is a stronger native fit. Hybrid deployments (Veeam for IT-adjacent OT such as corporate-side historians and MES, an OT-specific platform for plant-floor OT) are common and reasonable.

3. Rubrik Security Cloud

At a glance

Best for: critical infrastructure organizations that prioritize cyber-resilient immutable backup and have a corporate IT-driven data protection strategy.

Why it is worth considering: Gartner Magic Quadrant Leader for Backup and Data Protection Platforms (2025), strong cyber resilience positioning and a dedicated critical-infrastructure solution page positioning Rubrik against the rising risk of OT cyberattacks.

Where it stops: Rubrik's primary design center is identity protection, SaaS data and hybrid cloud. OT support is positioned at the IT/OT boundary rather than inside Levels 2 and 3 of the Purdue Model.

Overview

Rubrik Security Cloud is positioned as a zero trust data security platform. The current product line has expanded heavily into identity resilience (Active Directory, Entra ID, Okta), SaaS protection (Microsoft 365, Google Workspace) and most recently agentic AI protection (Rubrik Agent Cloud). The company has a dedicated critical-infrastructure solution page that cites the rising cost of OT outages.

Rubrik was named a Leader and placed furthest in vision in the 2025 Gartner Magic Quadrant for Backup and Data Protection Platforms.

Ideal use case

Critical-infrastructure operators (utilities, large health care systems, transportation networks, federal, state and local government) with corporate-IT-driven data protection strategies, that need immutable air-gapped backup as part of broader cyber resilience programs and where OT protection is one of many concerns rather than the primary one.

Key differentiators

  1. Logical air-gapped storage with immutable backups. Strong defense against backup compromise.
  2. Zero trust architecture as a design principle, with role-based access control and access logging across the platform.
  3. Identity resilience layer (AD, Entra ID, Okta) that complements OT protection at the IT/OT boundary.
  4. Gartner Leader recognition (2025 Magic Quadrant).

Strengths

  1. Strong cyber resilience positioning and platform design.
  2. Immutable backup that resists ransomware compromise.
  3. Mature SaaS and identity protection portfolio.
  4. Single Rubrik Security Cloud console covering data, identity and increasingly AI agents.

Limitations

  1. OT positioning is at the IT/OT boundary (corporate-side critical infrastructure), not inside the plant floor. Rubrik's critical infrastructure page emphasizes immutable backup and continuous monitoring, both valuable, but neither addresses the legacy OS and operator-led recovery requirements deep in the Purdue Model.
  2. Limited published support for Windows XP, Server 2003 and very old Linux kernels.
  3. Cloud-native design assumes connectivity. Pure air-gapped (no cloud connection at all) deployment is constrained.
  4. Not IEC 62443-4-1 certified at the supplier level.
  5. Not OEM-validated specifically for the major OT automation software vendors.
  6. Pricing positions it for larger enterprise budgets rather than midmarket plants.

Pricing guidance

Subscription-based, sold direct or through partners. Enterprise-grade pricing positioned at the higher end of the category. Rubrik publishes no list price. Budget appropriate for Global 2000 critical-infrastructure programs.

Recommendation

Choose Rubrik for the IT/OT boundary in a Global 2000 critical-infrastructure environment where immutable backup, identity resilience and zero trust positioning are central to the program. For plant-floor OT (HMI workstations, SCADA servers, engineering workstations on legacy Windows) pair Rubrik with a plant-floor backup platform purpose-built for OT.

4. Commvault Cloud

At a glance

Best for: large enterprise OT footprints in regulated industries (especially pharma and life sciences) where GxP compliance, data integrity and broad workload coverage are central.

Why it is worth considering: decades of enterprise-backup history, very broad workload type support and recognized strength in GxP-regulated environments.

Where it stops: like Veeam and Rubrik, Commvault is a general-purpose enterprise backup platform. Strong inside the corporate envelope, less native to the plant floor.

Overview

Commvault Cloud is the unified data protection platform from Commvault, with a long history in enterprise backup. The current platform supports a very broad range of workload types including virtual machines, databases, file servers, mainframe and cloud-native applications. Commvault has a particularly strong reputation in pharma and life sciences for GxP-validated backup workflows.

Ideal use case

Large pharmaceutical and life sciences manufacturers, multinational chemical and process companies and other regulated industries where GxP, FDA 21 CFR Part 11 and similar data integrity regulations apply, and where enterprise-grade workload-breadth is the primary requirement.

Strengths

  1. Broad workload type support. Useful in mixed enterprise and OT environments with many different system types.
  2. Strong reputation in GxP-regulated environments.
  3. Mature compliance reporting capabilities.
  4. Established global enterprise client base.

Limitations

  1. Like Veeam and Rubrik, the primary design center is enterprise IT. Plant-floor OT requirements such as legacy OS coverage and operator-led recovery are not its primary focus.
  2. Limited native support for very old Windows and Linux versions common in brownfield OT.
  3. No native operator-led recovery for plant staff.
  4. Air-gap deployment requires manual configuration.
  5. Not IEC 62443-4-1 certified at the supplier level.
  6. Implementation typically requires professional services and longer time-to-protection than OT-specific platforms.
  7. No OEM-specific validation for major industrial software vendors.

Pricing guidance

Subscription-based, enterprise-grade pricing. Often involves professional services for initial deployment. Speak to a Commvault account team or partner.

Recommendation

Choose Commvault for large pharmaceutical and life sciences OT footprints where GxP compliance is the central requirement and where the parent enterprise is already a Commvault client. For plant-floor OT outside that profile, particularly heterogeneous manufacturing environments with legacy operating systems, an OT-purpose-built platform is a more native fit.

5. Claroty

At a glance

This is not a backup platform. It is included as a reference for OT security teams evaluating how backup and security monitoring complement each other.

Best for: industrial organizations whose primary gap is OT asset visibility and threat detection rather than backup and recovery.

Where it stops: Claroty does not capture, store or restore system images of HMI workstations, SCADA servers or historians. It detects threats. It does not recover from them.

What the platform does

Claroty is a cyber-physical systems security platform focused on asset discovery, network monitoring, vulnerability and risk management, threat detection and secure remote access for industrial environments, as publicly documented.

Ideal use case

Industrial organizations that cannot answer the question "what is on my OT network" and need passive, protocol-aware visibility into industrial assets before, or alongside, building a recovery capability.

Key differentiators versus the backup platforms in this list

  1. Detects and inventories OT assets and industrial protocol traffic that backup platforms do not see.
  2. Identifies threats and vulnerabilities before an incident. Backup platforms recover after one.
  3. No backup, image capture or restore capability. Every backup-specific criterion in this guide is out of scope for Claroty.

Recommendation

Deploy Claroty (or a comparable OT network monitoring platform) alongside, not instead of, an OT backup and recovery platform. Detection tells you an incident is happening. Recovery determines how long it keeps your plant down. A mature OT cybersecurity program runs both layers.

6. Nozomi Networks

At a glance

This is not a backup platform. It is included as a reference for OT security teams evaluating how backup and security monitoring complement each other.

Best for: organizations that need passive OT and IoT network monitoring with asset intelligence across distributed industrial sites.

Where it stops: Nozomi Networks does not provide system-level backup, image-based restore or operator-led recovery. It is a visibility and detection layer.

What the platform does

Nozomi Networks provides OT and IoT security monitoring, asset inventory and anomaly detection using passive network analysis of industrial protocols, with sensor options for distributed and remote sites, as publicly documented.

Ideal use case

Multi-site industrial operators (utilities, oil and gas, manufacturing) that need continuous visibility into OT network behavior and early warning of anomalous activity across geographically distributed plants.

Key differentiators versus the backup platforms in this list

  1. Passive monitoring of industrial protocols with no agent footprint on OT endpoints.
  2. Asset intelligence and anomaly detection across distributed sites.
  3. No backup or restore capability. Backup-specific criteria in this guide do not apply.

Recommendation

Pair Nozomi Networks with an OT backup and recovery platform. The monitoring layer shortens detection time. The backup layer shortens recovery time. Industrial resilience requires both, and neither substitutes for the other.

7. Armis

At a glance

This is not a backup platform. It is included as a reference for OT security teams evaluating how backup and security monitoring complement each other.

Best for: organizations that need a single agentless asset visibility layer spanning OT, IoT, IT and medical devices.

Where it stops: Armis does not back up or restore systems. It discovers and assesses assets. Recovery is outside its category.

What the platform does

Armis is an agentless asset intelligence and security platform that discovers, classifies and assesses devices across OT, IoT, IT and connected medical environments, with vulnerability prioritization and threat detection capabilities, as publicly documented.

Ideal use case

Enterprises with sprawling, heterogeneous device estates spanning the carpeted and non-carpeted sides of the business, where the immediate problem is an incomplete asset inventory rather than a missing recovery capability.

Key differentiators versus the backup platforms in this list

  1. Agentless discovery covers devices that cannot accept a backup agent at all (PLCs, sensors, embedded devices).
  2. Single inventory across OT, IoT and IT rather than an OT-only view.
  3. No backup or restore capability. Backup-specific criteria in this guide do not apply.

Recommendation

Use Armis to establish the asset inventory that makes a backup program complete. You cannot protect workstations you do not know exist. Then deploy an OT backup and recovery platform against that inventory. The two categories complement each other and do not overlap.

8. Barracuda Networks

At a glance

This is not a backup platform. It is included as a reference for OT security teams evaluating how backup and security monitoring complement each other.

Best for: organizations whose primary exposure is email-borne attack delivery and that need general-purpose backup on the corporate side of the network.

Where it stops: Barracuda's backup offering is general-purpose, not OT-specific. Legacy industrial operating systems, air-gapped plant networks and operator-led recovery are outside its documented design focus.

What the platform does

Barracuda Networks provides email security, network security and data protection products including backup for corporate environments, as publicly documented.

Ideal use case

Organizations where phishing and email-borne ransomware delivery is the leading attack vector into the corporate network that fronts the plant, and where a general backup capability is needed for IT workloads.

Key differentiators versus the backup platforms in this list

  1. Email security focus addresses the attack delivery layer that most ransomware incidents start from, before anything reaches the OT network.
  2. General backup capability exists but is not positioned for plant-floor OT requirements such as legacy OS coverage, air-gap deployment or operator-led recovery.
  3. Not OT-purpose-built and not IEC 62443-4-1 certified at the supplier level.

Recommendation

Consider Barracuda for the email security layer at the IT side of an industrial organization. For protecting and recovering the plant floor itself, deploy an OT-purpose-built backup and recovery platform. The two address different stages of the same attack chain.

How to choose: a decision framework

Backup and recovery is one layer of OT cybersecurity. The right platform depends on the shape of your plants, your OEM mix, your regulatory exposure and how your IT and OT teams divide responsibilities.

Your situation
Primary recommendation
Heterogeneous plant. Mixed OEMs, legacy operating systems, air-gap requirements and operator-led recovery
Acronis Cyber Protect for OT
Single-OEM plant standardized on one automation vendor
Use the OEM's native configuration and change-control tooling for its own assets, with a heterogeneous system-level backup platform underneath
Greenfield plant on current Windows and Linux. Parent IT already on Veeam. Central IT drives backup
Veeam Backup and Replication
Global 2000 critical infrastructure. Immutable backup at the IT/OT boundary is the priority
Rubrik Security Cloud, with a plant-floor partner for deep OT
Pharma and life sciences with strong GxP requirements and existing Commvault enterprise standard
Commvault Cloud
OT asset visibility and threat detection is the primary gap (rather than backup)
Claroty, Nozomi Networks or Armis alongside the backup platform above. Different category
Email-borne attack delivery is the primary exposure at the IT side of the plant
Barracuda Networks for email security, alongside an OT backup platform for the plant floor

Note: Claroty, Nozomi, Armis and Barracuda are included as security-category reference points. They are not OT backup and recovery platforms. For a backup comparison, see the full vendor reviews above.

Important: backup is one layer. None of the platforms in this list is a complete OT cybersecurity stack. Backup and recovery sits alongside OT network monitoring, OT secure remote access and OT-aware NGFW segmentation. Plan your stack accordingly. The right backup platform makes the rest of your stack more credible by guaranteeing recovery. It does not replace the rest of your stack.

Conclusion and next steps

OT backup and recovery is no longer a niche category. With a 49% year-over-year increase in ransomware groups targeting industrial organizations (Dragos 2026 Year in Review) and 93% of manufacturing ransomware attacks now attempting backup compromise (Sophos 2024), the backup layer is among the most consequential decisions in an OT cybersecurity program. The platform you choose determines whether a ransomware-disabled plant returns to production in two hours or two weeks.

For most heterogeneous industrial environments, Acronis Cyber Protect for OT is the strongest fit. Among the platforms in this list, it is purpose-built for OT, with documented support for the legacy operating systems brownfield plants actually run, native air-gap deployment, operator-led One-Click Recovery, dissimilar-hardware restore and an IEC 62443-4-1 certified secure development lifecycle at the supplier level. Clients including ABB, Toyota, Tata Steel, Sasol and BDR Pharmaceuticals have validated this in production.

For single-OEM plants, the automation vendor's native tooling is reasonable to keep inside its scope. Pair it with a heterogeneous platform underneath if you also run any non-OEM assets or need broader legacy OS coverage. For greenfield plants under central IT-driven Veeam standards, extend Veeam where it fits and add a plant-floor tool where it does not. And treat the security platforms in sections 5 through 8 as complements to your backup choice, not alternatives to it.

Next steps

  1. Map your plant's OS, OEM and air-gap reality before evaluating any vendor. Most procurement disappointments come from platforms chosen against assumed requirements rather than the legacy OS and air-gap reality of the actual plant.
  2. Set explicit MTTR targets for each Purdue Model level. A two-hour HMI restore is achievable with the right platform. A two-day HMI restore is what you get from generic enterprise backup applied incorrectly to OT.
  3. Run a real recovery exercise during the trial. Schedule a tabletop plus a live restore plus safety validation. The SANS 2025 ICS/OT Survey found only 32% of organizations do annual recovery testing. The platforms that pass this test in your plant are the platforms worth buying.
  4. Pair your backup choice with the rest of your OT stack. Backup is one layer, not the whole stack.

Frequently asked questions

What is OT backup and recovery, and how is it different from IT backup?

OT backup and recovery is the practice of capturing and restoring images of the PC-based assets in industrial environments, primarily HMI workstations, SCADA servers, engineering workstations and historians. It differs from IT backup in three principal ways: legacy operating system support (OT systems often run Windows XP, 7 or Server 2003 because the OEM-certified application requires it), air-gap support (OT networks are often deliberately isolated from the internet) and operator-led recovery (a plant operator on shift needs to restore a failed workstation without waiting for IT). Most general-purpose enterprise backup tools are not designed against any of these requirements.

Does Acronis Cyber Protect for OT replace OT network monitoring tools?

No. OT network monitoring platforms such as Claroty, Nozomi Networks and Armis detect industrial protocol anomalies and discover OT assets passively. Acronis Cyber Protect for OT is a backup, recovery and endpoint protection platform. They protect different layers and most mature OT programs run both. Acronis recovers a plant's PC-based assets after an incident. An OT network monitoring platform detects industrial protocol anomalies before one. Use them together.

Can I run Acronis Cyber Protect for OT in a fully air-gapped environment?

Yes. Acronis Cyber Protect for OT is designed for air-gapped deployment. Active Protection (the behavioral anti-ransomware engine) runs offline and does not require signature updates from the cloud. Acronis Cyber Protect Local provides plant-floor management entirely inside the OT network for facilities that cannot or will not connect any management plane to the internet.

What operating systems does Acronis Cyber Protect for OT support?

Acronis Cyber Protect for OT supports Windows XP SP1 and later (XP, Vista, 7, 8, 8.1, 10, 11), Windows Server 2003 through Server 2022 and Linux kernels 2.6.9 through 5.19. The verified OS matrix is on the Acronis Cyber Protect for OT product page.

Is Acronis IEC 62443 certified?

Acronis is IEC 62443-4-1 certified, which covers the secure product development lifecycle of the supplier. This is increasingly required language in industrial procurement contracts, particularly for organizations subject to NIS 2 in the EU. The platform also helps you satisfy IEC 62443-3-3 SR 7.3 (data backup integrity) and SR 7.4 (system recovery and reconstitution) at the system level.

How fast can a typical HMI workstation be restored with Acronis One-Click Recovery?

In documented production environments, a typical HMI workstation restore via One-Click Recovery completes in minutes rather than hours. The exact time depends on the image size, the storage tier hosting the backup and the hardware being restored to. Operators perform the recovery without IT intervention. By contrast, manual file-by-file restore from a generic backup tool typically takes three to five hours per OT workstation when an IT engineer is available, and considerably longer when one is not.

How does Acronis compare to Veeam, Rubrik and Commvault for OT?

Acronis Cyber Protect for OT is purpose-built for OT and has the broadest legacy OS coverage, native air-gap deployment, operator-led recovery and IEC 62443-4-1 supplier certification. Veeam, Rubrik and Commvault are general-purpose enterprise backup platforms. Strong inside the corporate envelope and reasonable for IT-adjacent OT (corporate-side historians, MES) on current operating systems, but less native for plant-floor OT on legacy OS and air-gapped networks. Hybrid deployments are common: Acronis on the plant floor, an enterprise platform at the IT/OT boundary.

How do Claroty, Nozomi Networks and Armis relate to OT backup?

Claroty, Nozomi Networks and Armis are OT security platforms focused on asset visibility and threat detection. They are not backup and recovery platforms and cannot restore an HMI workstation, SCADA server or historian after an incident. Most mature OT cybersecurity programs run one of these monitoring platforms alongside a dedicated OT backup and recovery platform. Monitoring shortens detection time. Backup shortens recovery time.

Does Acronis Cyber Protect for OT integrate with my OEM's automation software?

Acronis is a Registered Ignition Technology Provider (Inductive Automation) and has documented compatibility with major OT software vendors including Siemens, Schneider, AVEVA, Honeywell, GE Digital, GE Vernova, Yokogawa and Emerson. The platform protects the underlying Windows or Linux workstation that the OEM software runs on, complementing OEM-native change-control tools rather than replacing them.

What is the typical cost of OT backup and recovery for a 100-workstation plant?

Pricing varies by platform, workload count, retention requirements and storage tier. For a plant with 100 OT workstations, Acronis Cyber Protect for OT typically lands meaningfully below the cost of an equivalent stack built from a separate IT backup platform plus separate anti-ransomware, EDR and patch management tools. Acronis includes anti-ransomware and EDR on the same agent, with patch management available via the Advanced Management add-on. Contact Acronis or a certified partner for a plant-specific quote.

Where does OT backup and recovery fit in NIS 2 compliance?

NIS 2 Article 21 requires essential and important entities to implement appropriate technical and organizational measures including business continuity, backup management and disaster recovery. OT backup and recovery is the central technical control supporting these requirements, alongside incident reporting (Article 23) which mandates 24-hour early warning of significant incidents. A platform that can restore plant production within hours, rather than days, materially changes the impact characterization of an incident under NIS 2.

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About Acronis

Acronis is a leader in AI-native cyber protection, unifying data protection, cybersecurity, IT operations and hybrid infrastructure to deliver business continuity, security and compliance with less cost and complexity. More than 21,000 service providers trust Acronis to protect over 750,000 businesses in 150 countries. Acronis is headquartered in Schaffhausen, Switzerland.